Index: content/browser/loader/upload_data_stream_builder.cc |
diff --git a/content/browser/loader/upload_data_stream_builder.cc b/content/browser/loader/upload_data_stream_builder.cc |
index e68c193e19f2f990da30f183b48c21f956f7fcd3..c8b9407bfabdceabdde975f002e21c05f5c1e357 100644 |
--- a/content/browser/loader/upload_data_stream_builder.cc |
+++ b/content/browser/loader/upload_data_stream_builder.cc |
@@ -115,6 +115,9 @@ scoped_ptr<net::UploadDataStream> UploadDataStreamBuilder::Build( |
new FileElementReader(body, file_task_runner, element)); |
break; |
case ResourceRequestBody::Element::TYPE_FILE_FILESYSTEM: |
+ // If |body| contains any filesystem URLs, the caller should have |
+ // supplied a FileSystemContext. |
+ CHECK(file_system_context); |
element_readers.push_back( |
new content::UploadFileSystemFileElementReader( |
file_system_context, |